I am new so sorry if this if posted in the wrong area.
I have an 02 plate Audi S3 BAM 225bhp. When I accelerate under load in any gear intermittently at 3k revs the turbo seems to cut out for a split second then kick back in. Almost as if there is a blockage.
I had a new engine fitted a few months ago due to a piston failing which also took out the bore. I thought the issue was due to coil packs but they all got replaced when the engine was fitted. So far I have replaced the MAF Sensor and N75 valve both have not resolved the issue. I have also hooked it up to a VAG device, it does not log any errors. I am getting pretty desperate now please help...